Lemon

When life hands you lemons, eat ’em! That’s right, get ready to pucker up, because lemon juice helps lower blood sugar, thanks to its incredible acidity (just thinking about lemons starts your salivary glands gushing). Because of that acidity, even a little lemon juice can lower the GL of any meal. Lime juice should have a similar effect.

Health Bonus
Four tablespoons of lemon juice will give you almost half the vitamin C you need for the day. Remember, antioxidants like vitamin C make cholesterol less likely to stick to your artery walls. Lemons are also packed with a natural disease-preventing compound called limonene that may help lower cholesterol and is even being studied for its potentially potent anticancer powers.

The citric acid in lemon juice also helps stave off kidney stones by reducing the excretion of calcium in the urine. Lemon rind is rich in a compound called rutin, which strengthens the walls of veins and capillaries, potentially reducing the pain and severity of varicose veins.